Congestion-aware Evacuation Routing using Augmented Reality Devices

利用虚拟现实进行野火疏散训练

Utilizing Virtual Reality for Wildfire Evacuation Training

针对野火威胁加剧背景下未经历者疏散准备困难的问题，本文探索利用虚拟现实（VR）技术开展疏散训练的潜力，讨论其独特优势、模拟创建初步步骤及未来发展方向，为疏散准备训练提供新途径。

Using Virtual Reality to Simulate Human-Robot Emergency Evacuation Scenarios

This paper describes our recent effort to use virtual reality to simulate threatening emergency evacuation scenarios in which a robot guides a person to an exit. Our prior work has demonstrated that people will follow a robot's guidance, even when the robot is faulty, during an emergency evacuation. Yet, because physical in-person emergency evacuation experiments are difficult and costly to conduct and because we would like to evaluate many different factors, we are motivated to develop a system that immerses people in the simulation environment to encourage genuine subject reactions. We are w…

Investigating Exit Choice in Built Environment Evacuation combining Immersive Virtual Reality and Discrete Choice Modelling

In the event of a fire emergency in the built environment, occupants face a range of evacuation decisions, including the choice of exits. An important question from the standpoint of evacuation safety is how evacuees make these choices and what factors affect their choices. Understanding how humans weigh these (often) competing factors is essential knowledge for evacuation planning and safe design. Here, we use immersive Virtual Reality (VR) experiments to investigate, in controlled settings, how these trade-offs are made using empirical data and econometric choice models. In each VR scenario,…

Use of immersive virtual reality-based experiments to study tactical decision-making during emergency evacuation

Humans make their evacuation decisions first at strategic/tactical levels, deciding their exit and route choice and then at operational level, navigating to a way-point, avoiding collisions. What influences an individuals at tactical level is of importance, for modelers to design a high fidelity simulation or for safety engineers to create efficient designs/codes. Does an unlit exit sign dissuades individual(s) to avoid a particular exit/route and vice versa? What effect does the crowd's choices have on individual's decision making? To answer these questions, we studied the effect of exit sign…

Rapid 3D Reconstruction of Indoor Environments to Generate Virtual Reality Serious Games Scenarios

Virtual Reality (VR) for Serious Games (SGs) is attracting increasing attention for training applications due to its potential to provide significantly enhanced learning to users. Some examples of the application of VR for SGs are complex training evacuation problems such as indoor earthquake evacuation or fire evacuation. The indoor 3D geometry of existing buildings can largely influence evacuees' behaviour, being instrumental in the design of VR SGs storylines and simulation scenarios. The VR scenarios of existing buildings can be generated from drawings and models. However, these data may n…

利用机器学习推荐系统促进混合现实中的社交互动

Catalyzing Social Interactions in Mixed Reality using ML Recommendation Systems

本文提出一种混合现实优先的社交推荐模型，融合注视、接近度、噪声等MR特征与适时特征以促进社交互动，并通过优化使各模型准确率提升超14个百分点。